摘要
为了研究全预制装配式混凝土柱-钢梁(RCS)混合结构的摩擦拼接耗能节点对框架结构整体抗震性能的影响,结合试验的破坏特征,建立了摩擦拼接耗能节点的弯矩-转角关系模型,利用Link单元模拟实际的摩擦拼接耗能节点。通过与试验结果对比,验证了该单元的合理性。在此基础上,以某5层框架为例,分别建立有摩擦拼接耗能节点与无摩擦拼接耗能节点的框架结构模型,进行了模态分析和Pushover非线性分析。研究结果表明:连接的刚度会影响结构的低阶自振周期,但是对高阶模态的影响很小;采用摩擦拼接耗能节点能够有效减小全预制装配式RCS混合结构的底部受力,且框架表现出较好的延性;结构的层间位移角都符合抗震规范的要求。
In order to study the influence of fully prefabricated assembled RC column-steel beam （RCS） hybrid structure with friction splicing energy consuming joint on the monolithic seismic properties of frame structure, combining with the failure characteristic of experiment, a moment-rotation model of friction splicing energy consuming joint was established. The joint was simulated by Link unit. The rationality of the unit was verified by comparing with the test results. On this basis, taken a 5 layers framework for example, the frame structure models with and without friction splicing energy consuming joints were respectively established to conduct modal analysis and Pushover analysis. The results show that flexibility of the connection will effect lower natural vibration period and has very little influence on the high order mode; the fully prefabricated assembled RCS hybrid structure with friction splicing energy consuming joint can effectively reduce the bottom force, and the structure shows good duetility; the layer displacement angle of the strueture meets the requirements of the seismic code.
出处
《建筑结构》
CSCD
北大核心
2014年第13期72-76,51,共6页
Building Structure
基金
江苏省研究生科研创新计划项目(CXLX13_709)
江苏省高等学校大学生创新创业训练计划项目(201310289032Z)
关键词
装配式结构
耗能节点
抗震性能
prefabricated structure
energy consuming joint
seismic behavior
